1 8 Grease Fitting Drill Size

Ptf fittings are sometimes generically referred to as 18 npt and may be threaded into npt or nptf threaded holes. Just wondering what size drill bit i should be using tapping a hole with an 18 npt tap i only have a very small set of bits like 14 or so and none seem fit all that well so i want to buy an individual drill bit that will work would like to know what size i should get.

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For the 18 npt machinist chart shows letter r drill 339 decimal equivalent look at part or zerk to be threaded into the hole you want to tap.

1 8 grease fitting drill size. For over 50 years we have supplied a variety of grease zerk sizes that meet sae specification j 5343 and military specification f 3541. Hi need some advice on fitting grease nipples to a recond berlingo rear axle that i hope to fit in the next week or so. Grease fitting gauge the easy way the easiest way to identify the thread on a grease fitting is to use a tool made specifically for this purpose.

These are the 14 28 thread and the 18 npt thread. However there are other less common grease fitting threads in use. The 18 refers to the diameter of the inside of the pipe it would connect or cause flow to.

I couldnt find a video on how to modify an existing grease fittings threaded hole so i made this one. Most tap kits have both of those sizes if not buy the one you already have a tap for. The large and strong threads on 18 27 ptf pipe thread grease fittings are suited for industrial use.

Drill and tap size for grease zerks i think 18npt and 14 x 28 are the two most popular here. 18 27 ptf pipe thread grease fittings have 27 threads per inch. Mic or caliper the smallest end by the opening.

What drill bit size and tap size do i need to use. The size of grease nipple i am fitting is 8mm. Thread sealant is recommended for use with npt threaded holes.

225 f i t t i n g s a c c e s s o r i e s 18 pipe thread grease fittings with ball check pkg angle overall thread wrench angle part qty degree e length clength asize b length d. Example 18 27 npt national pipe tapered thread. Do i need a starter tap then a finish tap.

Aetna screw offers grease fittings zerk fittings and lubrication fittings for a variety of industries like military and aerospace. Here are some ways to identify the threads on your grease fittings. For a common zerk fitting.

Request your grease zerk fittings quote today. Go to your local plumbing store and purchase a 14 to 18 npt pipe bushing and you should be able to get a 18 npt grease fitting in any automotive parts store that will fit the bushing if not your grease gun hose or pipe should screw right in the 18 to 14 bushing direct not quite as convient as using the grease fitting but will work ok.

Grease Zerk Fitting 24 Hole Metric Assortment 185 Pc Red